Question

Oxyhaemoglobin can transport

• A. 8 ml of CO${}_2$/100 ml blood
• B. 5 ml of CO${}_2$/100 ml blood
• C. 3 ml of CO${}_2$/100 ml blood
• D. 2 ml of CO${}_2$/100 ml blood

Answer 1

The correct option is C 3 ml of CO${}_2$/100 ml blood

Carbon dioxide is transported in the blood from the tissue to the lungs in three ways: (i) dissolved in a solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly oxyhaemoglobin.

Nearly 20-25 per cent of $C{O}_2$ is transported by RBCs whereas 70 per cent of it is carried as bicarbonate. About 7 per cent of $C{O}_2$ is carried in a dissolved state through the plasma.

Oxyhaemoglobin can transport 3 ml of $C{O}_2$/100 ml blood.

So, the correct answer is '3 ml of $C{O}_2$ /$100$ ml blood'.